Can-sealing machine



Oct. 7, 1930.- c. NELSON 1, 6

CAN SEALING ncnma Filed May 22. 1929 s Shoots-Shut 1 a INVENTOR F1911 gARL NEIL-SON By M MM Oct. 7, 1930. c. NELSON 1,777,761

CAN S EALING MACHINE FiledMay 22, 1929 3 Sheets-Sheet 2 5/ so a 6 55 2B 4 5 3 M W 7% n I a INVENTOF': 49 3 CARL NELSON fi -Q ATTORNEYS Oct. 7, 1930. c. NELSON 1,777,761

CAN SEALING MACHINE Filed May 22, i; 3 sauna-shun :s

Ill-

(ll/11m; I 35; A

Ammu

I can sealin Patented Oct. 7, 1930 ES-VPATENT OFFICE CARLYNELSON, OF EAU1 CLAIRE, 'WISCONSIN, ASSIGNOR TO NATIONAL IRESSUBE' COOKER COMPANY, OF EAU CLAIR-E, WISCONSIN, A CORPORATION OF WISCONSIN OAK-SEALING momma Application filed Kay 22,

This invention relates to improvements in machines of the character shown and descrlbed in my Patent No. 1,744,661, issued January 21, 1930:

'An object of the present invention is to provide a can sealing machine having means for rotating the can and its closure, and provided with seaming rollers adapted to be moved, one at a time, into engagement with the marginal edge of the can closure to bend it downwardly and inwardly to seam it to the can body in hermetically sealed relation. 1

A further object is to provide a can sealingmachine comprising a frame adapted-to be clamped to a suitable support such, for example, as a table, and havin upper and lower chuck plates between whic the can to be sealed is held, and yokes being mounted in the upper portion of the frame, each carrying a peripherally grooved roller having means for moving them into seaming engagement with the closure and can body, during rotation of the can and closure, and being provided with means for adjusting it towns 'of different sizes.

Features of the invention reside in the means provided for holding and rotating the can and closurei the means for successively moving the seaming rollers into engagement w1th the closure and can; the means for vertically moving the lower chuck plate and holding ;it in elevated .positionv to secure the can and closure between the chuck plates; and, in the general construction of the machine as a whole.

vOther objects of the invention willappear from the following description and accom- Y panying. drawings and will be pointed outin the annexed claims.

In the accompanylng drawings, there has vbeen disclosed astructure designed to carry out the various objects of the invention, but it is to be understood that the-invention is not confined to the exact features shown as body; z

1929. Serial No. 365,018.

chine showing chuck plates;

Figure 2 is a vertical sectional View on the line 2-2 of Figure'l with the can removed from the machine;

Figure 3 is a detail view showing the up-.

showing the lever moved in the opposite direction to move the other seaming roller into engagement with the edge of the can closure to bend it inwardly into seaming engagement'with the flange provided on the can body;

Figure 7 is a detail sectional view showa can positioned between the.

ing a portion of a can with a closure positioned thereon and the upper chuck plate seated against the closure;

Figure 8 is a detail sectional view on the line 88 of Figure 5, showing the first operaition in securing the closure-to the can Figure 9 is a detail sectional View onthe line 9'9 of Figure 6, showing the final operation in securing the closure to the can Figure 10 is a detail sectional view on the line 1010 of Figure 4;

Figure '11 is a sectional plan view on the line 11-11 of Figure 1, showing only the machine frame;

Figure 12 is a detail view showing one end of the cam lever; and

Figure 13 is a view showing a can with a closure positioned thereon ready to be seamed.

The novel can sealing machine featured in this inventioncomprises a frame 2 including 4 upright spaced-apart posts 3-3, provided at their upper extremities with-cylindrical tensions 4, each provided with areduced portion 5 adapted to receive a. cross member 6, as best shown in Figure 1. The reduced portions 5 are terminally threaded, as indicated at 7 to receive nuts 8. whereby the cross memher 6 may be rigidly secured to the cylindrical extensions 4 to connect together the upper ends of the posts 33. r

The lower portion of the frame 2 is provided with depending portions 9 having inwardly projecting lugs 11, provided with threaded sockets adapted to receive clamping screws 12, provided with beads 13 adapted to engage the lower surface of a table top 14, as shown in Figure 2. The heads 13 are rotatably connected with the screws 12. By means of the clamping screws 12, the machine may be quickly secured to the edge of a kitchen table or other suitable support, as shown in Figures 1 and 2.

A post 15 is suitably secured to the lower horizontal portion of the frame 2, and is adapted to receive one end of a cam lever 16, having cam faces 17 provided thereon adapted to engage correspondingly shaped cam faces 18, provided upon the lower horizontal portion of the frame 2, as shown in Figure 11. A spacing washer or collar 19 may also be mounted on the upright post 15 and seated against the upper surface of the cam lever 16, as best shown in Figure 2. A chuck plate 21 is bored to receive the upper end of the post 15 and has a. eounterbore 22 adapted to receive an anti-friction thrust bearing 23, prdjecting .slightly below the hub of the chuck plate 21, so as to seat against the upper face of the spacing collar 19, or on the cam lever 16, as the case may be. It will thus be seen that the chuck plate 21 is mounted for relative rotation upon the post 15. The collar 19 is used only when sealing small cans. When a large can is to be sealed, the collar 19 is removed from the post 15.

Annular grooves 24 and 25 areprovided in the face of the chuck plate 21, eaclradapted to receive the bead 26 provided on the. can bod y27, as shown in Figure 13. By thus providing two or more grooves in the face. of the chuck plate 21, different sizes of cans may be supported thereon.

A shaft 28, having 'a bevel gear 29 secured to the lower end thereof. is rotatably mounted in-a suitablebearingprovided in the cross member 6, as best shown in Figure 2. A collar 30 is demountably secured to the upper end of the shaft 28 by means'of a set screw 31. This collar prevents the shaft 28 and gear 29 from becoming disengaged from the cross member 6, when the can is removed from the machine, as shown in' Figure 2. The lower portion ofthe cross member 6 is counterbored to receive a suitable anti-friction thrust bearing 32, with which the upper face of the hub of the gear 29 is engaged, as shown. An operatlng crank 33 is rotatably mounted upon a in Figures Tand 13.

- also be rotated.

An upper chuck plate 36 is demountably secured to the lower face of the gear 29 by suitable screws 40, havingtheir heads countersunk in the chuck plate, as shown. The lower terminal of the shaft- 28 projects slightly below the lower face of the bevel gear 25), so as to'provide a means for centering the chuck plate 36 upon the gear. it being understood that the chuck plate is bored to receive the shaft.

The diameter of the upper chuck plate 36 is such as to substantially fit into the depression provided in the can closure 37, as shown in Figure 7, and its periphery is preferably knurled as indicated zit-38 in Figure 3, so that when the chuck plate is fitted into the depression in the closure 37, a driving engagement is obtained between the closure and the chuck plate. v I

The means provided for seaming the closure to the can body, is best shown in Figures 4, 5, 6, 8, and 9, and comprises a pair of yokes 39 and 41 mounted for oscillatory movement upon the cylindrical extensions 4 of the posts 33, as best shown in Figure 10. seaming rollers 42 and 43 are mounted in the yokes 39 and 41, respectively, adapted to be moved into and out of engagement with the marginal edge 44 of the can closure 37, as shownin Figures 5 and 6. A groove 45 is provided in the periphery of the roller 42 having an upper inclined face 46 adapted to engage the marginal edge 'of the closure flange 44 and bend it downwardly, as shown in Figure 8. A groove 47 is also provided in the periphery-"of the roller 43 which is shaped so as to bend the edge of the can closure 44 inwardly against and under the outwardly turned marginal edge 49, provided at the upper end of the can body, as shown A lateral extension 51 is providedon the cross member 6 and is bored to receive a shouldered stud 52yhaving its lower threaded terminal 53 receivedin threaded engage- -ment with a lever 54, as best shown in Figure 2. Links 55 connectone end of the lever 54 with the yokes 39 and 41, so that when the lever is oscillated from side to side. as shown ll] Figures 5 and 6. the seaming rollers 42 and 43 will be moved, one at a time, into engagement with the marginal edge 44 of the can closure, as shown In Figures 5 and 6.1 Opposite] extending lugs 56 are provided upon the ever 54, and each is provided with 12 an adjustably mounted abutment screw 57 adapted to engage a projection 58 provided upon the extension 51 of the cross member 6. These abutment screws and the projection 58 limit the oscillatory movement of the lever 1 groove 24 of the chuck plate, it being un-- derstood that the chuck plate 21 is in its lowermost position, when the can is initially placed thereon. .The lever 16 is then oscillated, thereby causing the cam faces 17 and 18 to'e'levate thelever 16, resulting in the chuck plate 21 moving upwardly on the post 15, until the upper chuck plate 36 engages the can closure, asxsho'wn in Figure 7. iThc cam faces 17 and18 are so shaped that when the lever is in. a certain position, the chuck plate 21 willbe retained in elevated posi tion, regardless of the downward pressure exerted therea'gainst, because of the can be 5 ing inserted between the two chuck plates.-

33 and, at the same time, swing the lever 54 from the position shown in Figure 4 to that shown in Figure 5, thereby causing the seaming roller 42 to move into engagement with the flange 44 of the closure and bend'it downwardly, as shown in Figure 8. The lever 54 is then swung from the position shown in Figure 5 to that shown in Figure 6, thereby moving the roller 42 out of engagement with the flange 44, and at the same time, moving a the links to the relative positions of the seaming rollersrolled against the flange 49 of the can the roller 43 into engagement therewith, as best shown in-Figures 6 and 9, thereby causing the closure flange to be' bent inwardly and ody resulting in theclosure being seamed to the can body in hermetically sealed relation.

The lever 54 is then returned. to its normalposition, as'shown. in Figure 4, and the lever 16 oscillated to lower the chuck plate 21,

whereupon the sealedcan may be removed from betweenthe two chuck plates and anothercan inserted therebetween. Additional apertures 59 are provided in prt vide. means for adjusting 42 and 43, to.adapt the'machine for cans of different diameters, When the screws 61 are inserted through the apertures 59 inthe links 55, the opposite ends of the yokes 39 -will be .relatively adjusted so as to provide a'wider space between the seaming rollers 42 and 43,

whereby a canof larger diameter may be sealed in the-machine. i

The construction of the machine is suchthat the. cans may be quickly inserted between and removed from the chuck plates without loss of time. The particular mount ing of the seaming rollers and the means for operating them is alsosuch that they may be -quickly moved into and out of seaming engagement with the closure fiange'44, while the can is being rotated by means of the by reference to Figures sure positioned thereon, means for rotating said can-holding me'ansipi'voted members on said frame each carrying a seamin roller, means operatively connecting toget er said' members, and a lever for actuating said connecting means to cause said rollers to engage and secure the closure to the can body in hermetically sealedrelation.

2. A can sealing machine comprising a frame, means for holding a can with a closure positioned thereon, means for rotating said can-holding means, members pivotally mounted on said frame and each carrying a seaming roller, anda hand lever. for operat-' The operator will then rotate the crank.

said edge will be rolled downwardly and seamed to the can body in hermetically sealed relation.

4. A can sealer comprisinga frame, chuck plates between which the .can and its closure are held, means for rotating said chuck plates to impart rotary movement to the can and closure,'yokes pivotally mounted on said frame and each carrying a peripherally grooved roller, and manual means for operat ing said yokes to cause said rollersto engage the edge of the can closure and seam-it to the can body in hermetically sealed relation.

5. A 'can sealing machine comprising a. frame," chuck plates between which the'can and its closure are held, means for rotating saidchuck plates to impart rotary movement to the Ryan and closure, yokes pivotally mounted on said frame. and each carrying a grooved roller, and a lever pivoted to the frame and operatively connected to. saidyokes, said lever being adapted to move said' rollers, one at a time, into engagementw-ith closure to seam it to the V the edge of the cam can body." I 1 6. A can sealing machine comprising a frame, spaced-apart chuck plates between whlch the can and closure to be sealed are held, means for rotating one of said chuck plates, mea ns for moving the other of said chuck plates towards and away from said first mentioned chuck plate whereby the can and closure may be clamped between said plateslyokes pivotally mounted on said frame and each carrying a grooved roller, a lever also mounted on the frame and operatively connected with said yokes whereby, when said lever is moved in one direction, one of said rollers willengage the marginal edge of the can closure and bend it in a direction lengthwise of the can body, and when said lever is moved in the opposite direction, the other of said rollers will engage said closure edge and bend it. inwardly against the can body to scam it thereto.

7. A can sealing machine comprising a frame, upper and lower chuck plates between which the can and closure to be sealed are held, means for rotating the upper chuck plate, means for vertically moving the lower chuck plate whereby the can and closure may be clamped between said plates, yokes pivotally mounted on said frame and each carrying a grooved. roller, a lever also mounted on said frame and operatively connected with said yokes whereby, when said lever is moved in one direction,'one of said rollers will engage the marginal edge of the can closure and end it downwardly, and when said lever is moved in the opposite direction, the other of said rollers will engage said closure edge and bend it inwardly to scam it to the can body. 1 8. A can sealing machine comprising a frame, an upper chuck plate, means for rotating said plate, a lower chuck plate mounted for rotary movement, a cam device for vertically moving said lower chuck plate and adapted to retain it in elevated position whereby a can and closure may be held between said plates, yokes pivotally mountedon said frame' and each carrying a. seaming roller, and a lever pivoted to the frame between said yokes and having link connections therewith, said lever being adapted to move said rollers, one at a time, into engagement with the marginal edge of the closure, to bend said edge downwardly and inwardly into interlocking engagement with a flange on the can body, whereby said closure will be seamed to the can body in hermetically sealed relation. V

9. A can sealing machine-comprising a frame, an upper chuck plate, means for rotat-ing said plate, a lower chuck plate mounted fpr rotary movement, a camdevice for vertically moving said lower chuck plate-and adapted to retain it in elevated whereby a can and closure may be old be tween said plates, yokes pivotally mounted in said frame and each carrying a seaming roller, means permitting adjustment of said rollers to cans of different diameters, a lever ivoted .to the frame between said yokes and aving link connections therewith, said lesition ver being adapted to move said rollers, one at a time, into engagement with the marginal edge of the closure, to bend said edge downwardly and inwardly into interlockin -eugagement with a flange on the can dy, whereby said closure will be seamed to the can body in hermetically sealed relation, and means for limiting swinging movement of the lever.

10. A can sealing'machine comprising a frame including spaced apart upright posts, a cross member connecting together the upper ends of said posts, yokes mounted on said frame and each carrying a seaming roller, a shaft mounted in said cross member and having a ear secured thereto, a crank also mounte on said cross member and having a pinion engagingsaid gear, a chuck plate demountably secured to said gear and adapted to engage a can closure, a lever having link connections with said yokes and whereby said seaming rollers may be moved, one at a time, into seaming engagement with said closure, a chuck plate rotatably mounted in the lower portion of the frame and adapted to engage the bottom of a can, said lower chuck plate being adapted for vertical adjustment to adapt the machine to cans of different heights, and a cam lever for moving the lower chuck plate upwardly to secure a can and closure etween said plates, during the seaming operation.

11.'-A can sealing machine comprising a frame including spaced-apart upright posts, a c lindical extension at the upper end of eac post, a yoke mounted on each extension and adapted for swin ing movement, a seamchuck plate rotatably mounted in the lower portion ofthe frame and adapted to engage the bottom of a can, said lower chuck plate being adapted for vertical adjustment to adapt the machine to cans of different hei hts,

and a cam lever .for moving the lower chuck plate upwardl to secure a can and closure tween said I) ates, during the seaming operation.

In witness whereof, I have hereunto set my hand this 17th day of May 1929.

- cAfeL NELSON. 

